Regarding heavy water separation, the BS article says: > All the water in the world contains light water H20, heavy water D20 and very heavy water T20. ... The

Regarding heavy water separation, the BS article says: > All the water in the world contains light water H20, heavy water D20 and very heavy water T20. ... The thing we need to know is that in every 5 liters of tap water there is 1 cc (cubic centimeter) of heavy water. Now heavy water is 17% heavier that light water. .. That leaves out HDO, or semi-heavy water. Quoting now from https://en.wikipedia.org/wiki/Heavy_water#Semiheavy_water https://en.wikipedia.org/wiki/Heavy_water#Semiheavy_water: > In normal water, about 1 molecule in 3,200 is HDO (one hydrogen in 6,400 is in the form of D), and heavy water molecules (D2O) only occur in a proportion of about 1 molecule in 41 million (i.e. one in 6,4002). Thus semiheavy water molecules are far more common than "pure" (homoisotopic) heavy water molecules. The 1:5000 ratio (1cc in 5L) is much closer to the 1:3200 ratio for semi-heavy water, not the 1:41 million for D20. The BS article also says: > [Heavy water] is considered a munition so you can not just go and and buy some without all kinds of legal documentation and permits United Nuclear says there are no restriction. See http://unitednuclear.com/index.php?main_page=product_info&cPath=16_17_69&products_id=135&zenid=54e1ed0c477416c600a4dd7dba62c247 http://unitednuclear.com/index.php?main_page=product_info&cP... . Also, a kilo costs $725. Sigma-Aldrich sells it at http://www.sigmaaldrich.com/catalog/product/aldrich/151882?lang=en&region=US http://www.sigmaaldrich.com/catalog/product/aldrich/151882?l... . 4 kilos @ 99+% pure costs about $4,000.